Counterpoint SA20

'AS IS' Was playing nicely, then heard a pop, so I shut it down Effective power SA-20 stereo SA-20/20 Strap mono SA-20/20 Bridge mono 640W (2 Ω load) 420W (4 Ω load) 220W (8 Ω load) 760W (2 Ω load) 460W (4 Ω load) 220W (8 Ω load) Deprecated (2 ohm load) 700W (4 Ω load) 600W (8 Ω load) Frequency characteristic 1.2 Hz ~ 200 kHz (8 Ω Load) Rise time 0.6 μ sec (8 Ω Load) Total harmonic distortion factor 0.05% or Less (1W, Effective Output) Cross modulation distortion factor 0.025%(CCIF) 0.02%(DIM200) 0.018% (SMPTE, 1W, 8 ohm Load) SN ratio (input short) 84 dB (400 Hz to 80 kHz, no acoustic compensation, stereo, 8 Ω, 1W) Damping factor 60 (8 Ω Reference) Input impedance 100k Ω, 100 pf Vacuum tube used 6DJ8 Audio Tube : 5 pieces 6CA4 Rectifier Tube : 1 Power consumption 260W (idle) External dimensions Width 483x Height 170x Depth 483 mm Weight 25kg